New developments in a story we brought you last night.
The Girard Medical Center was cordoned off yesterday after a man was treated for burns caused by military grade explosives.
Tonight the man's friend explains where the devices came from. KSN's Liz Bryant has the story.
Farlington, Kansas resident Rick Mitchell explains, "I stopped at a rummage sale and I bought a box full of plumbing parts."
Upon arriving back at his Farlington home Wednesday, Mitchell and his friend found a smaller box inside the PVC box. There were ten unknown devices stored inside.
"We took one of the containers out, peeled the top off and he poured a little out right here. About the time he sat it down right there, it ignited" Mitchell recounts.
The ignition caused the 42-year-old victim's shirt to catch fire which resulted in second and third degree burns.
Mitchell describes what the M-22's looked like, "like those little containers that 35 millimeter film comes in. Except they're white and have a gold or brass seal on top of them."
The containers were identified by a Wichita military unit as M-22 launch simulators. They are filled with 11 grams of magnesium and when mixed with air it explodes instantly.
Crawford County Sheriff Sandy Horton says, "initially we weren't sure if we were dealing with some kind of threat."
That's because the two took one of the M-22's to the Girard Medical Center to show doctors and law enforcement what caused the burns.
"I even had one of them ask me where you trying to modify this to create a bomb. I said I didn't even know it was an explosive" says, Rick Mitchell.
Horton says, "once their stories, everything started falling in to place, it became clear this was an accident."
Mitchell said he contacted the man in La Harp, Kansas who he bought the rummage sale items from. The man said he was also not aware the devices were military grade explosives.
"All of us would like to get to the bottom of how this device got out of the hands of the military. I know they'd love to know that too" says, Sheriff Horton.
And Mitchell has learned from this experience. "From now on when I go to rummage sales and I don't know what the stuff is. They're not coming home with me!"
Charges will not be filed against Mitchell or the victim.
However, the Allen County sheriff will be following up with the man who sold the M-22's.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.